--- audio_oss.c	Sun Jan 16 12:46:28 2000
+++ audio_oss.c.new	Sat May 13 17:13:07 2000
@@ -11,7 +11,12 @@
 #include <signal.h>
 #include <fcntl.h>
 #include <unistd.h>
+#ifndef __FreeBSD__
 #include <linux/soundcard.h>
+#else
+#include <machine/soundcard.h>
+#define SNDCTL_DSP_CHANNELS SNDCTL_DSP_STEREO
+#endif
 
 #include "audio.h"
 #include "piping.h"
